Technical Documentation
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Technical Documentation
Oxylog 2000 Emergency Ventilator
Revision 9.0 5503.160 9029650
Emergency Care • Perioperative Care • Critical Care • Perinatal Care • Home Care
Because you care
Contents General 1
Notes 1.1
3
Symbols and Definitions ... 4
Function Description 1
Intended use of Oxylog 2000
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1.1
7
Intended use of Oxylog 2000 HBO ... 8
2
Patient safety precautions
8
3
MedGV
9
4
Some important technical data
10
5
Comparison Oxylog/Oxylog 2000
11
6
Operating modes
13
6.1
IPPV ... 13
6.2
IPPV, Paw low alarm ... 14
6.3
IPPV, Paw high alarm ... 15
6.4
IPPV, leakage alarm ... 16
6.5
SIPPV (synchronized IPPV) ... 17
6.6
IPPV with PEEP (CPPV) ... 18
6.7
SIMV ... 19
6.8
SIMV trigger window ... 20
6.9
Fixed SIMV frequency ... 21
6.10 CPAP ... 21 7
Functional diagram
23
I
Contents 8
Function description
25
8.1
Gas connection, device switched off ... 25
8.2
Power supply ... 26
8.3
Electronic inputs ... 27
8.4
Electronic outputs ... 28
8.5
Switching the device on, IPPV, inspiratory Air Mix (50%) ... 28
8.6
Bistable valves ... 30
8.7
IPPV, Expiration ... 31
8.8
IPPV, expiration with PEEP >0 mbar (CPPV) ... 32
8.9
IPPV, inspiration, No Air Mix (100%) ... 33
8.10 SIPPV (synchronized IPPV) version ... 34 8.11 Spontaneous breathing (PEEP = 0) ... 34 8.12 CPAP (PEEP >0 mbar) ... 36 8.13 SIMV ... 36 8.14 Pmax ... 37 8.15 Safety valve ... 37 8.16 Auxiliary air valve ... 38 8.17 Flow measurement, autozero ... 38 9
Device holder
41
10
Front panels
42
10.1 Oxylog 2000 front panel (SW 1.XX) ... 42 10.2 Oxylog 2000 front panels (SW 2.XX) ... 43 10.3 Oxylog 2000 front panels (SW 3.XX) ... 44 Pneumatic components layout
45
12
Demand valve
46
II
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12.1 Demand valve functional description ... 46
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11
Contents 13
Pneumatic assembly
47
14
PEEP valve
48
15
Ventilation valve
48
16
Pressure regulator
50
17
Gas inlet
51
18
MV valve
52
19
Oxylog 2000 HBO patient valve
53
20
Control PCB
55
21
Sensor PCB
56
22
Display PCB
57
23
Fuse PCB
58
Maintenance Procedures Replacing consumable items
61
1.1
Replacing/fitting the battery pack ... 61
1.2
Replacing/fitting the AlkMn battery pack ... 63
1.3
Replacing the pressure regulator ... 66
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III
Contents Schematics and Diagrams 1
Printed circuit boards
77
2
Tubing and circuit diagrams
81
Annex Parts catalog Test List Technical Information
K5503160IECIVZ.fm 13.01.06
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IV
General
1
Oxylog 2000 1
Notes
General This Technical Documentation conforms to the IEC 60601-1 standard. Read each step in every procedure thoroughly before beginning any test. Always use the proper tools and specified test equipment. If you deviate from the instructions and/or recommendations in this Technical Documentation, the equipment may operate improperly or unsafely, or the equipment could be damaged. Use only original Dräger parts and supplies. The maintenance procedures described in this Technical Documentation may be performed by qualified service personnel only. These maintenance procedures do not replace inspections and servicing by the manufacturer. The information in this manual is confidential and may not be disclosed to third parties without the prior written consent of the manufacturer.
Strictly follow the Instructions for Use manual / Operating Instructions! This Technical Documentation does not replace the Instructions for Use manual / Operating Instructions. Any use of the product requires full understanding and strict observation of the product-specific Instructions for Use manual/ Operating Instructions.
Reference is hereby made to the observance of the relevant safety provisions, for example in Germany, the Medical Product Law (MPG), the Medical Device Operator Ordinance (MPBetreibV), the Pressure Container Ordinance (Druckbehälterverordnung), the Technical Rules for Pressurized Gases (Technische Regeln Druckgase), or the Occupational Health and Safety Provisions (Unfallverhütungsvorschriften). Unless otherwise stated, reference is made to laws, regulations or standards (as amended) applicable in the Federal Republic of Germany.
Observe protection mark DIN 34. Copyright reserved.
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Follow the laws and regulations applicable in your country.
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General 1.1
Oxylog 2000
Symbols and Definitions This symbol indicates a warning.
This symbol indicates tips and useful information.
This symbol is used to alert against unsafe practices when handling electrostatic sensitive devices (ESD).
= examination of actual condition
Maintenance
= measures to maintain specified condition
Repair
= measures to restore specified condition
Servicing
= inspection, maintenance, and repair
Observe protection mark DIN 34. Copyright reserved.
Inspection
4
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Definitions according to German standard DIN 31051:
Function Description
5
Oxylog 2000 1
Intended use of Oxylog 2000
Function description Oxylog 2000 is a time-cycled, volume-constant emergency lung ventilator for patients with a tidal volume of 100 mL or more. For the ventilation modes: •
Controlled ventilation IPPV with variable TI:TE, adjustable 60 or 100 vol.% O2.
•
Synchronized intermittent mandatory ventilation (SIMV).
•
Spontaneous breathing with continuous positive airway pressure (CPAP).
With monitoring: •
Of the airway pressure (Paw).
•
Of the expiratory minute volume (MV).
With monitoring: •
Of the airway pressure.
•
Of the electrical power supply.
•
Of the gas supply.
•
Mobile use in emergency care or in primary care of emergency care patients.
•
During transport in emergency rescue vehicles or by helicopter.
•
During transfers by road and air.
•
When moving ventilated patients around the hospital.
•
Use in the emergency room.
•
During secondary transfers from hospital to hospital.
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Areas of application:
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Function description 1.1
Intended use of Oxylog 2000 HBO
Oxylog 2000 Oxylog 2000 HBO is a time-cycled, volume-constant emergency lung ventilator for patients with a tidal volume of 100 mL or more. For the ventilation modes: •
Controlled ventilation IPPV with variable TI:TE, adjustable 60 or 100 vol.% O2.
•
Synchronized intermittent mandatory ventilation (SIMV).
•
Spontaneous breathing with continuous positive airway pressure (CPAP).
With monitoring: •
Of the airway pressure (Paw).
•
Of the expiratory minute volume (MV) via the Volumeter 3000 for VT and MV as firm measured variables.
With monitoring: •
Of the airway pressure.
•
Of the electrical power supply.
•
Of the gas supply.
Areas of application: •
Mobile use in emergency care or in primary care of emergency care patients in hyperbaric chambers. The use is restricted to the immediate area inside and outside of the HOB chamber. The Oxylog 2000 HBO is suitable for a pressure of max. 3 bar = 300 kPa absolute (20 m diving depth).
The Oxylog 2000 HBO may only be used with the patient hose system specified in the Instructions for Use manual!
Patient safety precautions
Monitor ventilation During ventilation ensure the patient is continuously monitored by qualified medical personnel.
If the life-supporting function of the lung ventilator can no longer be guaranteed on account of a fault, such as a power failure, ventilation of the patient must be continued without delay using another ventilation equipment, such as a manual ventilation bag, with PEEP and/or increased inspiratory O concentration if necessary.
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Keep manual ventilation device ready
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2
Oxylog 2000 3
MedGV
Function description The equipment is a Group 1 equipment according to the MedGV . According to the MedGV § 11 safety checks must be carried out at 2-year intervals. The device must be subjected to inspections and servicing by trained specialists (and the results logged) every 2 years. Standards Table 1 Type of protection
IP X4 (splash-proof)
Protection class of the power supply unit
II (as per EN 60601-1)
Manufacturer's certification on radio interference suppression
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This is to certify that the Oxylog 2000 meets the radio-interference suppression specifications as per EN 55014: 1987/A2 1990 and the immunity specifications as per 89/336/EEC regulation.
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Function description 4
Some important technical data
Oxylog 2000 Table 2 Control principle
Volume metering, time-cycled, volumeconstant Flow chopper Spontaneous breathing with integrated demand valve (also on PEEP level)
Ventilation modes
IPPV, SIMV/CPAP
Ventilatory frequency (f)
5 to 40 1/min ± 1/min
Ventilation time ratio (TI:TE)
1:3 to 2:1 ±5 %
Tidal volume (VT)
0.1 to 1.5 L ±10 %
Minute volume (MV) (at TI:TE = 1:1.5)
min. 1.0 to max. 25.0 L/min
Inspiratory pressure limit (Pmax)
20 to 60 mbar ±10 %
PEEP
0 to 15 mbar
Operating pressure of Demanad valve
approx. –1 mbar
Flow rate at –4 mbar
approx. 120 L/min
Pressure gauge measuring range
–10 to 80 mbar ±2 mbar
Flow measuring range
2 to 120 L/min
MV measuring range
2 to 40 L/min
O2 concentration AIR MIX NO AIR MIX
>7 L/min approx. 60 vol.% <7 L/min up to approx. 80 vol.% 100 vol.%
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For further data, refer to the Instructions for Use manual. Only the data specified in the applicable Instructions for Use manual is binding.
Oxylog 2000 5
Comparison Oxylog/Oxylog 2000
Function description Table 3 Features
Oxylog
Oxylog 2000
Working Principle
Flow chopper pneumatically controlled
Flow chopper electronically controlled
Power supply
--
internal: 6 NiCd cells (7.2 VDC) max. operating duration: 10 h 800–1000 charging cycles
Equipment volume
3.2 L
4.8 L
Equipment weight
2.0 kg
<4.0 kg
Ventilation mode
IPPV (with PEEP), EPAP (with optional demand valve)
IPPV (with PEEP) SIMV/CPAP (with integrated demand valve)
PEEP setting
external PEEP valve
integrated PEEP setting
Ventilation volume
Minute volume
Tidal volume
I:E ratio
fixed
variable
O2 concentration
selectable 50 % / 100 %
selectable 50 % / 100 %
inspiratory pressure limit
fixed
variable
Respiratory pressure measurement
only inspiratory
inspiratory and expiratory
Volume measurement
--
expiratory via patient-side flow sensor
Alarms
--
Apnea Leakage Supply pressure Supply voltage
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external: 10–26 VDC
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Function description Oxylog 2000
Oxylog 2000 6
Operating modes
6.1
IPPV
Function description
(Intermittent Positive Pressure Ventilation)
IPPV curve
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Figure 1
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6.2
Figure 2
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Function description Oxylog 2000
IPPV, Paw low alarm
IPPV, Paw low alarm
Oxylog 2000 6.3
Function description
IPPV, Paw high alarm
Figure 3
IPPV, Paw high alarm
If the Paw high alarm occurs, the set tidal volume VT is not delivered completely.
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As of SW 3.XX it is possible to adjust the Pmax control knob to 80 mbar. This setting limits the airway pressure to max. 80 mbar without aborting the inspiration prematurely (pressure-limited ventilation). Pressure limit is signaled by one single audible alarm. The set tidal volume is not delivered completely.
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Function description Leakage alarm
Figure 4
IPPV, leakage alarm
In this case, a VTE:VTI comparison is carried out, irrespective of the set MV and frequency.
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IPPV, leakage alarm
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6.4
Oxylog 2000
Oxylog 2000 6.5
SIPPV (synchronized IPPV)
Function description SIPPV mode is available as of SW 3.XX.
Figure 5
SIPPV
If the patient triggers within the expected trigger window, the frequency per minute is increased.
If the measured frequency exceeds the set frequency by more than 50%, the following alarm message is displayed: Frequency high. The max. inspiratory time is always limited to 1.3 seconds.
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To access the SIPPV mode, first set the mode selector switch to SIPPV. Then use the info key on the display to go to SIPPV and select with the reset key.
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